USB Desktop Microphone with standard 3.5 mm Mic input and output sound jacks Detachable and interchangeable flexible microphone boom (40 cm or 16") for easier removal, portability and storage Industry first integrated 'Speech Equaliser (EQ)' and 'Automatic Gain Control (AGC)' or Amplifier for superior performance with Speech recognition, Voice recording and wideband or 20 kHz High Definition (HD) Voice over IP (VoIP) or Internet telephony.